000 00278nam a2200121Ia 4500
008 220201s2001 xx 000 0 eng d
082 _a530
_bARO
100 _aArora, C.L.
245 0 _aB.Sc. Practical physics
260 _aDelhi
_bS.Chand
_c2001
300 _a609
942 _2ddc
999 _c36152
_d36152